"All these on-goings have no effect on DMK-Congress alliance and in future also it will have no effect," the Union Minister told reporters after meeting Karunanidhi.
He said Congress President Sonia Gandhi is concerned about Kanimozhi being in jail and he expressed sympathies with the DMK over the issue.
"Our leader Sonia Gandhi is concerned because Kanimozhi being a woman is in jail and it is a matter of concern and the fact is that one cannot do anything," Azad said.
He, however, clarified that the government would not interfere in the legal process.
Azad, who is also Congress in-charge of Tamil Nadu, maintained that Karunanidhi understands that the Supreme Court is directly monitoring the 2G spectrum case and the government has no role in it.
"Karunanidhi is a man of political standing and also a man of political understanding. He knows well that the Supreme Court is monitoring and a special court is looking into it. He also knows the opinion of the Government of India as it is not interfering in any cases, including the (Suresh) Kalmadi case," he said.